https://miscreants.github.io/blog.trailofbits.com/categories/threshold-signatures/Recent content in threshold-signatures on The Trail of Bits BlogHugoen-usWed, 20 Sep 2023 08:00:53 -0400https://miscreants.github.io/blog.trailofbits.com/2023/09/20/dont-overextend-your-oblivious-transfer/Wed, 20 Sep 2023 08:00:53 -0400https://miscreants.github.io/blog.trailofbits.com/2023/09/20/dont-overextend-your-oblivious-transfer/We found a vulnerability in a threshold signature scheme that allows an attacker to recover the signing key of threshold ECDSA implementations that are based on Oblivious Transfer (OT). A malicious participant of the threshold signing protocols could perform selective abort attacks during the OT extension subprotocol, recover the secret […]